How to use TI-83 Plus calculator

[anaseer]

How do I use TI-83 Plus to make a gragph of x4 + y4 = 16

I solved the equation for intercepts and Y-intercept is -2, 2 and x-intercept are 2,-2 now I have to make a graph or I can use a graphic calculator but I dont know how to enter Y4 in it.

 

[galactus]

To graph it has to be solved for y.

Enter \(\displaystyle y=(16-x^{4})^{\frac{1}{4}} \;\ \text{and} \;\ y=-(16-x^{4})^{\frac{1}{4}}\)

 

[anaseer]

Thank you it is a big help